V souvislosti s evolucí přístupových sítí se v současné době stále častěji diskutují optické, případně kombinované opticko-metalické přístupové přípojky označované jako FTTx (Fibre to the X), kde optická část přípojek bude založena na některé z variant pasivních optických přístupových sítí (PON), nejčastěji na variantě GPON (Gigabit Passive Optical Network) či EPON (Ethernet Passive Optical Network). […]
Insertion loss tests are primarily used to test FTTx PONs (Passive Optical network) during installation. Insertion loss testing may be performed on individual fiber segments as they’re installed (e.g. test feeder fiber from Central Office (CO) to Fiber Distribution Hub (FDH), test distribution fiber from FDH to AP, or test drop fiber from AP to […]
Multimode fibers are identified by the OM (“optical mode”) designation as outlined in the ISO/IEC 11801 standard. OM1, for fiber with 200/500MHz*km overfilled launch (OFL) bandwidth at 850/1300nm (typically 62.5/125um fiber) OM2, Type A1a.1 , for fiber with 500/500MHz*km OFL bandwidth at 850/1300nm (typically 50/125um fiber) OM3, Type A1a.2, for laser-optimized 50um fiber having 2GHz*km […]
The following is a list of optical testing tools used for FTTx (Fiber to the x) network: 1. VFL (visual fault locator) is capable continuity check fiber link up to 15km, break/bend visual identifier for fibre along patch panel/hub areas, It is mainly applied in fibre link construction and troubleshooting at locations where fibres are accessible. […]
PON architectures for FTTH deployments are currently based on passive optical splitters to distribute the bandwidth to each customer using fiber splitters providing ratios ranging up to 1:64 or even 1:128. The physical PON FTTH architecture typically supports the Ethernet protocol. PON network feeds a variety of optical network terminations (ONTs) or optical network units […]
Overview A new White Paper by the FTTH Council Market Intelligence Committee finds European FTTH deployment cost estimates are highly accurate. That makes investing in fibre highly attractive. To determine whether the FTTH cost estimates used in European projects accurately represent the actual costs, the FTTH Council approached a wide selection of parties involved in […]
Believe it or not, there is no straightforward answer to this question. Most countries in Europe have been using STP cabling for a long time, whereas in the US and in Canada, UTP has maintained dominance with over 95 percent of the installed base using UTP instead of STP. A best practice is to stay […]
The Medical fiber optics using biological compatible ETEF cladding fiber, with non-magnetic ceramic ferrule or good thermal conductivity metal ferrule, meet different application field. The auxiliary materials could meet the medical standard; the medical fiber optics could be applied to human body that meets the biomedical requirement after sterilization treatment. The fiber optics could realize […]
Narrowing down and selecting the right combination of cabling components can quickly become overwhelming, especially when you consider the hundreds of comparable components available on the market. Each component has its own advantages and disadvantages, cost variations, and compatibility levels. This is your best chance to get the right equipment purchased and deployed and to […]
Color provides quick visual identification. Color coding simplifies management and can save you hours when you need to trace cables. Color coding can be applied to ports on a patch panel: patch panels themselves come with different color jacks or have colored inserts that surround the jack. Cables are available in many colors (the color […]
